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ISRO
ISRO Technician-B
Electronic Mechanic
ISRO Technician-B Electronic Mechanic 2019
69

ISRO Technician-B Electronic Mechanic Question Paper - 2019 (Set - 1) with Answer Key

69) What is the fan out of a typical 2 input TTL gate?

1

2

10

20

Answer is:

10

ISRO Technician-B Electronic Mechanic Question Paper - 2019 (Set - 1) with Answer Key

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Related ISRO Technician-B Electronic Mechanic Question Paper - 2019 (Set - 1) with Answer Key

70) What is the output waveform of 8038 function generator?

Square

Triangle

Sine

All of the above

Answer is:

All of the above

Explanation:

Output waveform of 8038 function generator can be
* Square
* Triangle
* Sine

71) A circuit has a resistor of 2 Ohm and capacitor of 1 micro Farade connected in series. The time constant of the circuit is

2 Micro seconds

8 Seconds

2 seconds

0.5 seconds

Answer is:

2 Micro seconds

72) Which of the following conditions are needed to properly bias an NPN transistor as an amplifier?

Apply a large voltage on the base

Forward bias the collector/base junction and reverse bias the emitter/base junction.

Apply a positive voltage on the n-type material and a negative voltage on the p-type material.

Forward bias the base/emitter junction and reverse bias the base/collector junction.

Answer is:

Forward bias the base/emitter junction and reverse bias the base/collector junction.

ISRO Technician-B Electronic Mechanic Question Paper - 2019 (Set - 1) with Answer Key

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